﻿// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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using Irony.Ast;
using Irony.Interpreter;
using Irony.Interpreter.Ast;
using Irony.Parsing;
using ICSharpCode.Reporting.BaseClasses;

namespace ICSharpCode.Reporting.Expressions.Irony.Ast
{
	/// <summary>
	/// Description of ParametersCallNode.
	/// </summary>
	public class ParametersCallNode: AstNode
	{
		AstNode parameterNode;
		
		public override void Init(AstContext context, ParseTreeNode treeNode)
		{
			base.Init(context, treeNode);
			var nodes = treeNode.GetMappedChildNodes();
			parameterNode = AddChild("Args", nodes[2]);
		}
		
		
		protected override object DoEvaluate(ScriptThread thread)
		{
			BasicParameter result = null;
			thread.CurrentNode = this;  //standard prolog
			var parametersCollection = thread.GetParametersCollection();
			result = parametersCollection.Find(parameterNode.AsString);
			if (result == null)
				return ExpressionHelper.ComposeAstNodeError("Parameters",parameterNode);
			return result.ParameterValue;
		}
	}
}
